Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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This rule detects potentially malicious activity by monitoring the execution of Python interpreters or specific suspicious executable names from within the C:\ProgramData directory. The detection logic focuses on processes launching from directories associated with configuration or data storage folders, often used by malware for staging or execution to avoid detection. It specifically flags Python execution involving certain suspicious file or argument strings, and the launch of named executables (e.g., RuntimeSSH.exe, smqdservice.exe) located in specific ProgramData subdirectories.
Detects instances where suspicious or potentially non-standard processes (e.g., winappx.exe, MsCache.exe) or Python scripts running from specific ProgramData subdirectories spawn cmd.exe with a /c command line argument. This pattern is often indicative of persistence mechanisms, lateral movement, or malicious script execution.
This rule detects unauthorized processes modifying the 'Secure Preferences' configuration file in Google Chrome or Microsoft Edge browser data directories. This activity often indicates an attempt by malicious software to hijack browser settings, such as forcing extensions or modifying security policies, which is a common precursor to credential theft or persistent malicious access.
This rule monitors endpoint network events, file operations, and process executions for known malicious indicators (domains and file hashes) associated with Kremlin activity. It detects connections to suspicious remote domains and the existence or execution of specific malicious file hashes.
Detects outbound network communication from common web browsers (chrome.exe, msedge.exe) to a specific malicious domain and path associated with suspected Kremlin-linked screenshot exfiltration activities.
Detects the creation of a scheduled task using schtasks.exe where the command line involves 'MicrosoftNodeRuntimeUpdater' and references 'node.exe' or '.js' files, specifically when initiated by script engines like node.exe, wscript.exe, or cscript.exe, while excluding known legitimate nodejs installation paths.
This rule detects command line patterns associated with common Impacket tools (wmiexec, psexec, smbexec) executed via Windows processes (cmd.exe, powershell.exe) or via network connections to ports 445 and 135 initiated by Python processes. These tools are frequently used by adversaries for lateral movement, remote service execution, and command execution on compromised systems.
Detects anomalous, high-volume authentication failures originating from a single source IP address targeting multiple distinct internal devices within a short timeframe. This behavior is indicative of a password spraying or brute-force attack.
Detects the use of database or archiving command-line utilities to export data related to RADIUS services. The rule filters out known backup service accounts and authorized backup processes, flagging activity that occurs outside of standard business hours or is performed by accounts not explicitly designated for administrative or database maintenance tasks.
Detects instances where the Windows Remote Management host process (wsmprovhost.exe) is associated with the execution of specific suspicious files (config.toml, cplsupport.exe, or wtass.exe) within a short time window. This activity often indicates post-exploitation behavior or remote execution of secondary tools using WinRM.
Detects Mimikatz binary or in-memory module used for credential harvesting following PaperCut RCE exploitation
Detects HEAVYGRAM/CRUDEEXCLUDE persistence via Run-key registry writes or reg.exe command-line adds, scoped to payloads staged in AppData/ProgramData/Temp/Public/Downloads and excluding legitimate Program Files/System32 targets to reduce false positives from normal software autorun entries.
Detects HEAVYGRAM/CRUDEEXCLUDE persistence via Run-key registry writes or reg.exe command-line adds, scoped to payloads staged in AppData/ProgramData/Temp/Public/Downloads and excluding legitimate Program Files/System32 targets to reduce false positives from normal software autorun entries.
IOC hunt for the HEAVYGRAM/CRUDEEXCLUDE campaign: matches known SHA256 file hashes (first-stage malware, implant, RAR/ZIP artefacts) via DeviceFileEvents and DeviceProcessEvents, plus known-malicious domains/staging infrastructure by parsed hostname across network connections, process command lines, and file origin URLs.
Detects the execution of the Rubeus.exe utility with command-line arguments indicative of Kerberos-related credential harvesting and abuse, such as Kerberoasting, AS-REP Roasting, and Pass-the-Ticket attacks.
Detects the creation of a scheduled task using 'schtasks.exe' configured to run as the SYSTEM account for a one-time execution. This behavior is often associated with persistence mechanisms or privilege escalation attempts where an adversary seeks to execute malicious code in a high-privileged context.
Detects unauthorized modification of the registry path 'HKCU\Software\Classes\ms-settings\Shell\Open\command'. This registry key is commonly hijacked by the 'fodhelper.exe' UAC bypass technique, where an attacker writes a malicious command to be executed with elevated privileges when the OS triggers the ms-settings protocol handler.
Detects modifications to the Windows RunMRU registry key that include suspicious strings such as 'powershell', 'curl', or long base64-encoded sequences. This behavior is indicative of the 'ClickFix' technique, where users are socially engineered to paste and execute malicious commands directly into the Windows Run dialog.
Detects attempts by PowerShell processes to modify the memory space of amsi.dll, a common technique used to bypass the Antimalware Scan Interface (AMSI) by patching its functions in-memory.
Detects the use of legitimate Windows administrative utilities (vssadmin.exe, wmic.exe, wbadmin.exe) to delete volume shadow copies or backup catalogs. This behavior is a common tactic employed by ransomware actors to inhibit system recovery and prevent restoration of encrypted data.
Detects lateral movement activities involving the use of WMIC to remotely create processes or Schtasks to remotely create scheduled tasks. These techniques are often used by threat actors, including those associated with DragonForce and CRPx0 ransomware, to propagate across a network by executing commands on remote systems.
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